The Ecology of bruchids attacking legumes (pulses) : proceedings of the international symposium held at Tours (France), April 16-19, 1980

Ecological problems arising from weevil infestation of food legumes.- Univoltine and multivoltine cycles: their significance.- The bean weevil populations from the Acanthoscelidesobtectus Say. group, living on wild or subspontaneous Phaseolus vulgaris L. and Phaseolus coccineus L. and on Phaseolus vulgaris L. cultivated in the Teportlan region state of Morelos - Mexico.- Some ecological factors affecting diapause in adults of Acanthoscelidesobtectus from Mexican mountains.- Importance of allelochemics in plant insect relations: personal reminiscences.- The role of sense organs in the relations between bruchids and their host plants.- Relations of Acanthoscelides with their plant hosts.- First data on Bruchidae which attack the pods of legumes in Upper Volta, of which eight species are man consumed.- Role of allelochemics in the specialisation of trophic relations between bruchids and legumes.- Feeding, longevity and reproduction of adults of Acanthoscelidesobtectus Say in laboratory conditions.- Some data on the reproductive activity of Zabrotes subfasciatus in the laboratory.- Trophic relations and ecological status of the adults of Bruchus pisorum L. and allied field species of Bruchidae Coleoptera).- Evolution of spatial pattern of attacks by Acanthoscelides obtectus Say (Coleoptera: Bruchidae) of Phaseolus vulgaris L. pods in south west France.- Polymorphism and phase dimorphism in Callosobruchus.- Reproductive polymorphism of populations of Acanthoscelidesobtectus from different Colombian ecosystems.- Influence of the tegument of Phaesolus vulgaris seeds and of larval density on the development of Acanthoscelides obtectus Say.- Polymorphism and ecological reactions in Callosobruchus maculatus F. (Coleoptera, Bruchidae) in Upper Volta.- The use of resistant varieties of cowpeas (Vigna unguiculata) to reduce losses due to post-harvest attack by Callosobruchus maculatus.- Bruchidae related to grain legumes in the Afrotropical area.- Distribution, ecology and importance of bruchids attacking grain legumes and pulses in Africa.- Observations on the ecology of Bruchidius atrolineatus Pic. and Callosobruchus maculatus F (Coleoptera, Bruchidae) in Niger.- Distribution and importance of bruchid attacks on different species of pulses consumed in the Near East.- The parasites of bruchids.- Conclusions and recommendations.